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Finding the Fourth Proportional to 56,485.50, 84,669.12 and 19,032.63

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Solution

The fourth proportional to 56,485.50, 84,669.12 and 19,032.63 is: 28,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,485.50 : 84,669.12 = 19,032.63 : x
  2. Step 2: Convert to fraction form
    56,485.50/84,669.12 = 19,032.63/x
  3. Step 3: Cross multiply
    56,485.50x = 84,669.12 × 19,032.63
  4. Step 4: Simplify right side
    56,485.50x = 1,611,475,938.22
  5. Step 5: Solve for x
    x = 1,611,475,938.22/56,485.50
  6. Step 6: Final answer
    x = 28,529.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.